Elmac Technologies’ Low Pressure Protection Equipment is designed to safeguard tanks against rupture or implosion while filling and/or emptying. The Pressure Vacuum Relief Valves (PVRV) restrict product loss and environmental discharges while also protecting tanks from thermal changes. It is crucial to have sufficient pressure protection to prevent catastrophic failure of tanks or vessels.
We are dedicated to creating Pressure Vacuum Relief Valves (PVRV) and other safety equipment that are at the forefront of providing ultimate protection in low-pressure process environments. Our skilled technical team collaborates closely with our global clientele to create tailored, cost-effective solutions that meet or exceed their safety and operational performance needs.
Pressure & Vacuum refiel valves
The Elmac Technologies® range of pressure and vacuum relief valves (PVRV) are low-pressure devices designed to safeguard tanks, process systems, and equipment against excessive pressure and vacuum.
FAB Valve Series
The Elmac Technologies® patented Flame Arrester Breather Valve (FAB Valve™) integrates a RE-Flow™ Flame Arrester with a Pressure & Vacuum Relief Valve (PVRV).
Elmac Technologies® patented Cowhorn arrangement attaches pairs of flame arresters and pressure/vacuum relief valves to a three-way valve.
Emergency Relief Vents
Elmac Technologies® non-sparking emergency vents provide emergency vent capability in the event of a fire. They can also provide access to low-pressure storage tanks for inspection and maintenance.
The Elmac Technologies® Series Free Vents are designed for use on any atmospheric tank to prevent the build-up of internal pressure and stop the ingress of foreign matter.
Tank Gauge Hatches
The Elmac Technologies® series of sounding hatches provide easy access to atmospheric liquid storage tanks for manual level measurement and sampling.
About pressure protection equipment from Elmac Technologies
We are committed to developing the world’s leading Pressure Vacuum Relief Valves (PVRV) and associated safety equipment that provide ultimate protection in low pressure process environments. Our experienced engineering team works closely with our global customers to design and tailor tailor-made, cost-effective solutions that meet or exceed their requirements in terms of both safety and operational performance benefits.
The filling and emptying cycles of tanks and vessels cause changes in liquid volume and vapor space, and this, along with fluctuating operating temperatures and pressures, results in the need for pressure relief equipment. Situations where a tank or vessel is vulnerable to engulfment by fire may require the rapid removal of large amounts of vapor to protect the tank and its surroundings. Safety devices, such as high-level alarms or control systems, can fail, leading to catastrophic failure of the tank. This can lead to serious injury, product loss and severe environmental damage. Accordingly, fail-safe devices such as: pressure/vacuum relief valves, emergency relief vents, and/or other venting devices such as: rupture discs should be mounted adjacent to flame arresters where they may be required.
Elmac offers a full range of pressure vacuum relief valves and related equipment. For more detailed information, please select a specific product from our range below.